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高速列车荷载作用下路基的动力分析 被引量：1

Dynamic analysis of foundation under high-speed railway loads
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摘要 通过在静力单元刚度矩阵的主对角元素上增加与移动速度有关的项,得到移动问题有限元的单元刚度矩阵,从而将动力学问题转化为"拟静力"问题处理。然后用拟静力有限元方法求解了地基在高速移动荷载下位移随速度变化的问题,通过与解析解的对比,验证了该算法的可行性和正确性。 The moving velocity terms were added to the principal diagonal elements of the static element stiffness matrices, then the dement stiffness matrices of moving problem can be established. In this way, the dynamic problem was transformed to ＂quasi-static＂ problem. Then the displacements which vary with the velocity of high-speed moving loads were calculated by the quasi-static finite element method. The result was compared with the analytical solution to validate the feasibility and correctness of the arithmetic.
作者 李艳 金波
机构地区 同济大学航空航天与力学学院
出处 《山西建筑》 2008年第33期31-32,共2页 Shanxi Architecture
关键词 移动荷载 有限元方法 拟静力问题 动态弹性模量 moving load, finite element method, quasi-static problem, dynamic modulus of elasticity
分类号 U416.1 [交通运输工程—道路与铁道工程]
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参考文献6

  • 1Sneddon I. N. The stress produced by a pulse of pressure moving along the surface of a semi-infinite solid [ J ]. Rend. Cir. Mat. Palermo, 1952(2) :57-62.
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  • 3Cole J, Huth J. Stresses produced in a half plane by moving loads[J]. Jounrnal of Applied Mechanics, 1958(25) :433-436.
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  • 6丁凯,金波.移动荷载作用下地基动力分析的有限元方法[J].力学季刊,2006,27(4):648-654. 被引量：13

二级参考文献10

  • 1Sneddon I.N. The stress produced by a pulse of pressure moving along the surface of a semi-infinite solid[J]. Rend Cir Mat Palermo 1952,(2) 57- 62.
  • 2Sneddon I N. Fourier Transforms[M]. New York, NY: McGraw-Hill; 1951.
  • 3Cole J, Huth J. Stresses produced in a half plane by moving loads[J]. Jounmal of Applied Mechanics 1958,25:433 - 436.
  • 4Eason G. The stresses produced in a semi-infinite solid by a moving surface force[J]. Int J Engng Sci 1965, (2): 581 - 609.
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  • 9Tirupathi R. Chandrupatla, Ashok D. Belegundu, Introduction to Finite Element in Engineering[M]. Person Education, 2000.
  • 10江里平．工程弹性力学[M].同济大学出版社，2000．

共引文献12

同被引文献5

引证文献1

山西建筑
2008年 第33期

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